Improved spue-wheel



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Letters Patent No. 82,054, dated September 8, 1868.

IMPROVED SPUR-WHEEL.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, C. F. WOODRUFF, of Newbern, in the county of Dyer, and State of Tennessee, have invented a new and improved Spur-Wheel; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure'l is. a top view.

Figure 2 is a Vsection through the line :e x of iig. 1.

Figure 3 is a perspective view of one of the cogs, detached. v

This invention is an improvement upon the device patented by the same inventor, May 5, 1868, No. 77,700, and consists in forming the cogs with shoulders, so expanded as to bear against each other all around the rim of the wheel, and in trifureating or dividing the outer ends of the spokes or radial arms, in such a manner that the inner endsof the inserted eogs shall be enclosed and firmly held between the forks of the radial arms, whereby the whole wheel is made stronger and firmer than as heretofore constructed.

In the drawings, A A. are the two parts of the rim, provided with contiguous gains, and held together by the dove-tail eogs M M, in the manner clearly shown in the section, iig. 2.

The cogs are made in the form shown in iig. 3, having projecting shoulders, m m, of such a size'that the shoulders come together on the outside of the rim, as seen in fig. 1, the eogs thus covering the whole outer surface or periphery of the rim, and binding against each other, so that each one assists to hold the two adjoining ones in position, and prevent their vibrating or working loose intheir sockets.

The inner ends or shanks 'of the cogs project throughthe rim, as seen at M M', and are keyed or bolted in place, as seen at e e e. Those that enter between the forks of the spokes are made longer than the others, as shown at R R. All are wedge-former tapering, and have dove-tailed or grooved sides, m m. N is one of the spokes, the end of it, where it joins the rim, being expanded or enlarged in width, and trifurcated, as seen at n n.' n.. The inner ends of two of the long eogs R R enter between the outer' forks and the central one, wedging firmly between them, and, if necessary, being fastened by a bolt, o, driven through the spoke and the ends R R, as shown in fig. 1. The connection thus made between the end of the spoke and the rim is much firmer and stronger than as the parts` have been heretofore eonstrueted,the central fork, n', supporting the others, and all the projections, n n R R, interlocking, and holding each other firmly in position, so that, if properly constructed, no amount of vibration or jarring can separate the parts, or injure the wheel at this point.

v Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The series of eogs M, the rim A, shoulders m m, and pins e, constructed and arranged substantially as described.

2. The spokes N N, when formed with the trifurcated end n n n, substantially as described.

3. The combination of the trifureated spokes N N with the projecting ends R R of the elongated cogs, substantially as described.

C. F. WOODRUFF.

Witnesses:

P. H. WALTON, S. S. Conn.. 

